International Business Machines Corporation

Bryce Frey

Al Chakra

Lama Chakra

Latrell D Freeman

Komal Shrivastava

Jonathan Erskine

Matthew Fletcher

A computer identifies capture device output that represents an aspect of a recorded event. The computer cryptographically processes the primary subsets of capture device output to produce a validatable master file which includes master file media data primary subset from the capture device output, master primary subset metadata of the master file media data primary subset, and master file blocktree data. The master file blocktree data includes a master file block history portion, a master file signature key portion, and a signed hash of the master file media data primary subset. The computer also modifies the master file media data primary subset to produce a reference file media data primary subset. reference files and distributable files. The computer verifies the authenticity of each of these files.

Validating primary subsets of received sensor data using computer cryptographic processing

Media capture and verification originally-captured media files, the nature of modifications made to captured media files, and the authenticity of various versions of files related to the captured media are discussed. A computer identifies capture device output that represents an aspect of a recorded event. The computer cryptographically processes the capture device output to produce a validatable master file which includes master media data from the capture device output, master metadata of said master media data, and master file blockchain data. The master file blockchain data includes a master file block history portion, a master file signature key portion, a master file change indication portion, and a master file signed data hash portion. The computer also modifies the master media data to produce reference file media data. reference files and distributable files. The computer verifies the authenticity of each of these files.

Validating received sensor data using computer cryptographic processing

A computer identifies capture device output that represents an aspect of a recorded event. The computer cryptographically processes the tracked portions of capture device output to produce a validatable master file which includes master file media data tracked portion from the capture device output, master tracked portion metadata of said master file media data tracked portion, and master file blockchain data. The master file blockchain data includes a master file block history portion, a master file signature key portion, and a signed hash of said master file media data tracked portion. The computer also modifies the master file media data tracked portion to produce a reference file media data tracked portion. reference files and distributable files. The computer verifies the authenticity of each of these files.

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Bryce Frey